This document describes how to recover a password on a Cisco Catalyst
6500/6000 LAN emulation (LANE) module. The document addresses these modules:
For this procedure, you need a straight cable (instead of the classic,
fully crossed cable).
Caution: The password recovery procedure of the Catalyst 6500/6000 LANE module
breaks with the latest software revision (which, at the time of the initial
publication of this document, is Cisco IOS® Software Release 12.1(4)E2). Refer
to Cisco bug ID
(registered customers only)
for detailed bug
For more information on document conventions, refer to
Technical Tips Conventions.
This document describes the password recovery procedure on a Catalyst
6500/6000 Supervisor Engine with Catalyst OS (CatOS) software version 6.1 (1b)
and on a Cisco ATM LANE module with Cisco IOS Software Release 12.0(5)XS1.
Attach a terminal or PC with terminal emulation to the console port
of the ATM LANE module.
Use these terminal settings:
9600 baud rate
8 data bits
1 stop bit
No flow control
Issue the show version command and
record the setting of the configuration register.
of Password Recovery Procedure
section of the document
Recovery Procedure for the Cisco 1600 Series Routers provides output of
a show version command. The configuration register
setting is usually 0x2101 or 0x101.
Go to the Supervisor Engine of the Catalyst 6500/6000 and issue the
Press Break on the terminal keyboard within 10
seconds of the power up to put the module into ROM monitor (ROMmon).
If the break sequence does not work, refer to
Break Key Sequence Combinations During Password Recovery for other key
Issue the confreg 0x2142 command at the
rommon 1> prompt to boot from Flash without
loading the configuration.
Issue the reset command at the
rommon 2> prompt.
The module reboots, but ignores the saved configuration.
As these questions appear on the screen, enter the responses that
appear here in boldface:
Would you like to enter the initial configuration dialog?
Would you like to enter basic management setup?
Would you like to see the current interface setup?
Enter host name:
Enter enable secret:
Enter virtual terminal password:
Note: This is where you enter the new password that gets
Configure SNMP Network Management? no
Note: If you do not specify an enable secret password, type
Enter no until you get a menu where you can
choose to save your configuration.
Enter 2 to save the
Issue the enable command at the
Enter your new password.
You are in enable mode and see the
Issue the copy start running command to
copy the NVRAM into memory.
Do not issue the configure
Issue the write terminal command or the
show running command.
Issue the configure terminal command and
make the changes.
The prompt is now
Issue the config-register 0x2102
command, or the value that you recorded in Step 2.
Press Ctrl-Z to leave the configuration
The prompt is now hostname#.
Issue the write command to commit the
Issue the reload command to restart with
the new configuration register.